Rover 5377 - 12HP User manual

Ranger Auto - Drive

Owners Manual

Model No. 5377 – 12HP.

WARNING

• A mower is a high speed cutting tool. Safety precautions must be observed to reduce the risk of accident.

• Careless or improper use may cause serious injury.

• Be sure that you read and fully understand the contents of this Owner’s Manual. Should any point be unclear, contact

Rover-Scott Bonnar Limited, in your State or an authorised Rover-Scott Bonnar Service Agent for assistance.

• Keep the Owner’s Manual in a safe place for future reference. Read the Owner’s Manual periodically to ensure the

continued safe and proper use of the mower.

SAFETY INSTRUCTIONS

• A mower user must be in good physical condition and

mental health and not under the influence of any drug or

alcohol which might impair vision co-ordination or

judgement.

• Do not use a mower when tired or fatigued. Lack of

alertness may cause serious injury.

• Know your controls.

Read and understand Owner’s Manual before operating

mower. Learn how to stop the mower in an emergency. Refer

Operator’s Instructions.

• Do not lend or sell the mower without the Owner’s Manual.

• Be sure that anyone using the mower reads and fully

understands the information contained in this Manual and

knows how to safely operate the mower.

• Do not allow children or people unfamiliar with these

instructions to use the mower.

• Never mow whilst bystanders or pets are present in the

mowing area.

• Never carry passengers.

• Never mow while barefoot or wearing open sandals or

thongs. Wear long trousers and heavy non-slip shoes.

• It is advisable to wear suitable eye protection when

operating a mower.

• Before using, always visually inspect to see that the

blades, blade bolts, and cutter assembly are not worn or

damaged. Replace worn or damaged blades and bolts in

sets to preserve balance.

• Damaged blades and worn bolts are major hazards.

• Replace worn or faulty silencers.

• Always mount and dismount mower from left-hand side

(opposite side to discharge chute).

• Make sure the area to be mowed is cleared of sticks,

stones, bones, wire and debris. They could be thrown by the

blades.

• Store fuel in a cool place in a container specifically

designed for that purpose. In general, plastic containers are

unsuitable. Handle fuel carefully. It is highly flammable.

• Refuel outdoors only. Do not smoke when refueling

engine. Add fuel before starting engine. Never remove the

cap from the fuel tank or add petrol while the engine is

running. Allow engine to cool for several minutes before

refueling if engine is hot. If petrol is spilled, do not attempt to

start the engine, but move the mower away from the area of

the spill and avoid creating any source of ignition until the

petrol vapors have dissipated.

• Remove the fuel cap slowly to relieve fuel tank pressure.

• Check for fuel leaks while refueling or using the mower. If

a fuel leak is found, do not start or run the engine until the

leak is fixed and spilled fuel is wiped away.

• Take care not to get fuel on your clothing. If this occurs,

change your clothing immediately.

• Do not operate mower in confined space where exhaust

fumes (carbon monoxide) can collect.

• Mow only in good daylight.

• Start the engine carefully with feet well away from the

blades.

• When starting do not wrap the started rope around your

hand. Do not allow the started cord to snap back. Return the

starter grip slowly to allow the cord to rewind properly.

• Strictly follow the operator instructions before attempting

to start the machine.

• Never mow where machine could tip or slip.

• If machine stalls going uphill, stop blades and back slowly

down.

• Mow up and down slopes. Never mow across a slope.

Exercise extreme caution when changing direction on slopes.

Do not mow excessively steep slopes.

• Do not accelerate or stop the mower suddenly when on a

slope.

• Be extremely careful when using a mower on slopes. Stay

alert for holes in the terrain and other hidden hazards.

• Disengage cutter drive before mowing across gravel drives,

walks or roads.

• Do not mow in reverse. When reversing keep a careful and

continuous observation of the entire area behind the mower.

• Never use the mower unless all guards provided by Rover-

Scott Bonnar Limited are in position.

• Never disconnect the safety switches and never operate

the mower if any safety switch is inoperative.

• Never over-speed the engine or alter the governor settings.

Excessive speed is dangerous and shortens mower life.

• Take all precautions when leaving the mower unattended.

Disengage the cutter drive, set the park brake, shift into

neutral, stop the engine, and remove the key.

• Stop the engine and remove the key whenever you leave

the mower, even for a moment.

• Stop the engine and disconnect the spark plug lead and

inspect mower if:

a) The mower begins to vibrate abnormally: or

b) After striking a foreign object.

Repair the damage before continuing further operation of

the mower.

• Stop the engine and disconnect the spark plug lead before

clearing blockages, checking or working on the mower.

• Never pick up or carry a mower while it is operating.

• Where fitted, turn fuel tap off at the conclusion of mowing.

• When transporting in a vehicle, secure the mower to

prevent movement, roll-over, fuel spillage, and mower

damage.

• Keep all nuts, bolts and screws tight to be sure the

equipment is in safe working condition.

• Never modify the mower in any way. Use only replacement

parts made and guaranteed by Rover-Scott Bonnar Limited.

• Keep all safety devices (guards and switches) in place and

working.

• Keep the engine free of grass, leaves or excessive grease –

these can be a fire hazard.

• Store the mower in a well ventilated room away from

naked flames such as may be found in hot water heaters.

SAFETY FEATURES

 Traction drive, blade drive and seat

safety interlock

 Low centre of gravity, stable wide track

 Enclosed drives

 Parking brake

 Full footrests  Convenient – easy to operate controls

1

SPECIFICATIONS

ROVER RANGER

Machine Model No. 5377

Engine Model No. 281707

Single Cylinder Briggs & Stratton

4 Stroke 12Hp 465cc

Fuel Capacity 4.0 Litres

Oil Capacity 1.42 Litres

Lubrication Gear Impellor

Spark Plug type Champion CJ8

Spark Plug gap 0.7 to 0.8mm

Ignition type Magnetron

Engine Oil 10w-30 or SAE 30

TRANSMISSION

Auto-Drive system consists of a continuous belt being driven

by an idler pulley over two drive pulleys and around a return

pulley. Friction plates are brought into contact with the drive

pulleys to impart either forward or reverse motion to rear

drive wheels by means of a drive selector pedal on the right

side of the machine.

Ground speed at 3600 rpm is variable due to Auto – Drive

system depending on pressure applied to drive selector

pedal.

Max. speed = 8.6 km/hr

CUTTING HEAD

Model 160 Full floating pressed steel housing with right

side discharge. Width of cut 760 mm (30”).

TYRES

Front Tyres: 4.1 x 6 Tube

Pressure 140 KPA maximum

Rear Tyres: 16 x 6.5 x 8 Tubeless

Pressure 96 KPA maximum

CONTROLS

∗ Throttle control with Fast, Slow and Choke positions;

∗ Key switch with Off, On and Start positions;

To emphasise special information the words WARNING and

CAUTION are used.

WARNING: The safety of the user and others

involved.

Personal injury may result should this

information be disregarded.

CAUTION: Follow these instructions carefully to

avoid mower damage and loss of

warranty.

STEERING WHEEL

325MM Dia. Steering Wheel. 1 ¼ turns lock to lock.

CLUTCH/BRAKE PEDAL

Foot operated pedal. Left side of machine.

PARKING BRAKE KNOB

Hand operated catch. Left hand side. Used in conjunction

with clutch/brake pedal.

DRIVE SELECTOR

Foot operated pedal located on right side of machine. Spring

loaded so as to return to neutral position.

CUTTING HEIGHT

Lever right hand side. 8 height of cut positions from 15mm

to 65mm.

CUTTER DRIVE

Lever located left side of seat cowl.

GENERAL

Wheel Base: 135cm Length: 164cm

Track 63cm. R 69cm F Width: 80cm

Turning Circle: 5.8m Height: 95cm

Turning Radius: 2.0m Weight: 195kg

2

LOOSE PARTS KIT

DESCRIPTION

Steering wheel

Roll Pin

Stone Guard Assy.

Spring Stone Guard

‘E’ Clip

Ignition Keys

Plug Spanner

QTY

1

USE

On steering shaft

Secure steering wheel to shaft

Fitted to cutter head

On stone guard pivot rod

In groove in pivot rod

To start machine

SETTING UP INSTRUCTIONS

Fig. 2

INSTALL STEERING WHEEL

1. Slip steering wheel over steering shaft and align the wheel

hole with the shaft hole;

2. Insert drift punch – partially through the holes to maintain

alignment and insert roll pin in the opposite side; See

Fig.2.

3. Drive roll pin in until flush with the outside of wheel.

Fig. 3

FIT STONE GUARD

1. Slip spring into stone guard pivot rod so that the short leg

rests on top of the stone guard;

2. Now twist the spring as shown and feed the end of the

pivot rod into the forward pivot bracket: See Fig.3.

3. Insert the short end of the pivot rod fully into the rearward

pivot bracket;

4. Release the spring. It should spring down onto the top of

the cutter head and be tensioning the stone guard down;

Fig. 4

5. Secure by clipping an ‘E’ Clip into the groove on the pivot

rod. See Fig. 4.

INSTALLING THE BATTERY

BATTERY

1. Remove Battery as follows;

(a). remove terminal cable from battery;

(b). undo wingnuts and remove clamp bar.

2. The battery is not filled with Electrolyte. This should be

done by adding 33% strength battery acid to each cell

until plates are covered. Electrolyte must be purchased

from a local battery supply outlet.

IMPORTANT: DO NOT OVERFILL BATTERY. ACID WILL

OVERFLOW INTO OTHER PARTS OF THE MACHINE AND

SEVERE CORROSION AND DETERIORATION WILL RESULT.

3. Leave filler caps off and connect battery charger to

battery terminal. Charge at the rate indicated in the

instructions supplied with the battery.

4. After charging, check that Electrolyte is still covering

plates, if not, add to correct level. Install filler caps.

5. Replace battery and secure.

6. Install the positive (red) cable to the positive (+)

terminal and the negative (black) cable to the negative

(-) terminal.

Secure for good electrical contact.

3

BEFORE OPERATING

FILL CRANKCASE WITH OIL

The rider mower may be delivered without oil in the

crankcase. Oil must be added before attempting to

start the engine.

1. Place machine on level surface. Ensure that the

oil plug is securely tightened. Clean around

dipstick.

2. Unscrew and remove dipstick from oil filler tube.

3. Insert funnel into filler tube and slowly add oil in

accordance with the engine manufacturer’s

direction.

NOTE: Avoid premature engine failure by ensuring

the funnel is clean so contaminants are not

introduced into the crankcase. Wipe any oil

spills so it will not cause dirt to collect on the

engine.

4. Ensure oil level is at the full mark on the dipstick,

when screwed completely in. When finished

replace dipstick and retighten.

NOTE: See Maintenance Instructions.

FILL FUEL TANK – See Safety Instructions.

Use only regular grade or unleaded petrol.

Do not mix oil with petrol – engine damage may result.

1. Clean around fuel tank cap so foreign matter cannot

enter tank when cap is removed.

2. Using a funnel, fill tank with regular grade or unleaded

petrol. Replace cap.

3. Wipe up any petrol that may have spilled.

CHECK TYRE PRESSURE

Check and maintain tyre pressure at 140KPA (20 PSI) front

and 96KPA (14 PSI) rear maximum.

ADJUSTING THE SEAT

Tip the seat forward,

loosen the seat securing

screws. Relocate the seat

for operator comfort.

Tighten the seat securing

screws and lowers the seat

See Fig.5

Fig. 5

CONTROLS

Fig. 6

1. Throttle Control – Mounted on the control panel and connected

to the engine carburetor controls. Has the symbols for Slow,

Fast and Choke.

2. Ignition Switch – This switch is part of the battery ignition

system and has three positions marked for Off, On and Start.

The switch is key operated and automatically returns to the On

position from Start position when released.

3. Brake/Clutch – Foot operated pedal on left side of machine.

Depressing the pedal disengages the drive belt and engages

Brake Disc.

4. Parking Brake – Hand operated knob left hand side.

Depressing the brake clutch foot pedal enables this knob to be

engaged and disengaged. Brake is locked on with knob in up

position.

5. Drive Selection – Foot operated right hand side. Depress with

toe pressure gives forward motion; depress with heel gives

reverse motion. Automatically returns to neutral position.

6. Cutting Height Adjuster – Located on right of seat with low cut

at bottom and high cut at the top setting.

7. Cutter Drive – Lever located on left hand side of seat mounting

box. Down position disengages blade drive and applies blade

brake, Up position engages blades.

4

OPERATING INSTRUCTIONS

AUTO – DRIVE OPERATION

Forward and backward movement of the mower is controlled by the drive selector pedal. As with a motor vehicle,

speed is controlled by the amount of pressure on the drive selector pedal. Ensure that the mower user is familiar with

this means of operation before operating the mower, particularly in tight or confined areas.

TO START ENGINE

NOTE: The engine will not start unless the cutter drive is

disengaged, and clutch/brake pedal is depressed.

1. Depress clutch/brake pedal – Apply the parking brake

2. Move the drive selector to neutral

3. Disengage the cutter drive

4. Move the throttle lever to the choke position

5. Turn the ignition key to the start position and release

when the engine starts

6. Move the throttle lever to about ¼ position

TO MOW OR DRIVE

1. Depress clutch/brake pedal

2. Disengage the parking brake

3. Select height of cut

4. Move throttle to about ¾ position

5. Engage cutter drive

6. Select desired drive

7. Slowly release clutch/brake pedal to move off

TO STOP ENGINE

1. Depress clutch/brake pedal

2. Shift the drive selector to neutral

3. Disengage the cutter drive

4. Apply the parking brake

5. Move throttle lever to the slow position

6. Turn the ignition key to OFF. Remove the keys

TO STOP IN AN EMERGENCY

1. Depress brake/clutch pedal and drive selector pedal

together. (This disengages power from the engine and

engages the disc brake)

2. Apply park brake and lock

3. Move throttle to slow position and switch off ignition key

4. Dismount from mower if it is safe to do so

IMPORTANT

1. The parking brake should always be applied before

leaving the machine

2. The parking brake must be released before attempting to

drive

3. Depress the clutch/brake pedal-when starting or coming

to rest

4. Do not use sudden directional reversal which can cause

wheel spinning

ENGAGING CLUTCHES

When engaging the cutter drive lever or releasing the

clutch/brake pedal, always operate slowly. Do not use a

jerking motion. Moving these controls too fast could

possibly overload and stall the engine.

WARNING: To avoid loss of control always come to a

complete stop before changing drive direction

and slow down before turning.

REMEMBER

1. Always look behind the machine before reversing

2. Do not refuel when the engine is running or while the

engine is hot

3. Keep bystanders away – Keep hands and feet clear of

moving parts

4. Keep machine clean of grass and debris

5. Keep all safety devices (guards and switches) in place

and working

Periodically check the machine and the cutting mechanism.

If parts are worn or need replacing do so by using only

Genuine Rover Replacement Parts.

There is a comprehensive Ranger Spare Parts List contained

in this book to help you select the right part quickly.

Before working on the mower, disconnect the spark plug lead

from the spark plug and place it where it cannot contact the

spark plug.

Check your Rover Ranger frequently for loose nuts, bolts,

belts etc, and keep these items correctly tightened and

adjusted.

Note: A check after the first two hours of operation is

recommended. Engine failure or rapid engine wear

mainly result from the following causes –

1. Dirt or abrasives entering the engine via the air

cleaner due to –

a. The air cleaner element not being serviced

regularly, or

b. The air cleaner damaged or dislodged

2. Dirt or abrasives entering the engine via the oil

filler tube due to –

a. Using a funnel not cleaned of dirt and grit,

b. Topping up with contaminated oil. Oil stored

in an unclean container

3. Lack of oil. It is important to –

a. Check the oil level regularly (every 5 hours of

operation)

b. Maintain a full sump

5

MAINTENANCE INTERVAL CHART

See

Page

5

Hours

25

Hours

PERIODIC SERVICE EVERY 25 HRS

50 75 100 125 150 175 200

Change Oil (Initial) 6 X

Change Oil (Periodic) 6 X

Check Interlock 11 X X

Check Cutting Blades - X X

Check Cutting Unit Brake 9 X

Check Rear Wheels Brake 9 X

Lubricate Pivot Points 7 X

Lubricate Drive Chain 7 X

Lubricate Throttle Cable 7 X

Grease Front Axle Spindles 7 X

Service Air Cleaner 6 X

Check Spark Plug 6 X

Check Drive Belts 10 X

Check Drive Chain 10 X

Check Tyre Pressure 4 X

Clean Outside of Engine - X

Clean Cutter Housing - X

Paint Chipped Surfaces - X

AIR CLEANER: Dual Element Type –

1. Remove two cover knobs and remove air cleaner

cover.

2. Remove foam pre-cleaner, if so equipped

a. Wash pre-cleaner in liquid detergent and warm

water to remove dirt

b. Wrap pre-cleaner in cloth and squeeze dry

c. Saturate foam in engine oil. Squeeze to remove

excess oil.

3. Remove two nuts from top of cartridge.

4. Remove cartridge and clean air cleaner body carefully

to prevent dirt from entering carburetor. Brush dirt

from lower air cleaner body into duct.

5. Clean cartridge by gently tapping on flat surface

a. If very dirty, replace cartridge or wash in a low or

nonsudsing detergent and warm water solution

b. Rinse thoroughly from INSIDE OUT until water is

clear

c. Cartridge must be allowed to stand and air dry

thoroughly before using.

6. Reassemble air cleaner.

NOTE: Nuts holding air cleaner cartridge must be installed

with fiber washers down on cartridge plate to

prevent dirt from entering carburetor. Tighten nuts

by hand. Over tightening could collapse cartridge.

NOTE: Petroleum solvents, such as kerosene, are not to

be used to clean cartridge. They may cause

deterioration of the cartridge. DO NOT OIL

CARTIRIDGE. DO NOT USE PRESSURISED AIR TO

CLEAN OR DRY CARTRIDGE.

OIL CHANGE

See engine manufacturer’s instructions.

1. Place machine on a level surface. Start and run engine

for a period to warm the oil.

2. Fit drain tube to drain fitting; see Fig.8.

3. Place an oil pan under the end of drain tube;

4. Open the drain fitting about 1 turn and allow the oil to

drain completely;

5. Retighten drain fitting and refill sump with new oil. For

correct viscosity and service classification, see the engine

manufacturer’s instructions.

SPARK PLUG

The spark plug gap gradually increases during engine running

and should be checked periodically and whenever the engine

malfunctions.

1. Clean around spark plug area so that dirt will not enter

engine when plug is removed

2. Disconnect spark plug lead and remove spark plug

3. Check condition of electrodes and ensure there is no

damage to insulator

4. Carefully clean the spark plug. Do not grit blast

5. Set the gap to .8mm (.30”)

6. Install plug in engine and tighten to 20Nm. If a torque

wrench is not available hand tighten plug. Then with tube

spanner tighten plug about 1/12 of 1 turn

7. Refit high tension lead. Push onto plug firmly.

6

MAINTENANCE

COOLING SYSTEM

The Ranger has an air cooled 4 stroke engine. It must be

cleaned frequently. Remove any build-up of grass, dirt or other

debris from the -

1. Cylinder;

2. Cylinder head cooling fins;

3. Cooling air intake screen and;

4. Carburetor governor levers and linkages.

This will ensure adequate cooling and correct engine speed.

THROTTLE CONTROL

Proper choke and stop switch operation is dependant on

adjustment of remote controls –

1. Loosen outer cable clamp screw (D) on engine; See

Fig.9.

2. Set throttle control to choke position;

3. Adjust outer cable under clamp plate so that choke is

operated;

4. Tighten clamp plate screw and check –

a. Choke does not operate in fast position,

and

b. Stop switch operates correctly.

CARBURETOR ADJUSTMENT

The carburetor has been factory set and should only require

occasional fine tuning. See Figs.9 & 10.

1. Close high speed needle valve (A) in bottom of

carburetor bowl. Close finger tight in clockwise

direction;

2. Open (anti-clockwise) the needle valve 2 turns (that is

an approx. setting);

3. Start engine and let it warm up. Approx. 2 minutes.

Cutter drive must be disengaged. Speed Select-or must

be in Neutral position and Park Brake applied, air

cleaner must be fitted and secured and fuel tank must

be half full.

4. With the engine running at high speed, adjust the

needle valve 1/8 turn at a time. Clockwise or anti-

clockwise until engine runs smoothly.

NOTE: Allow several seconds between each adjustment for

engine to adapt to the new setting

5. Move throttle to the slow position and adjust the slow

running stop screw (B) to give an engine speed of 1700

to 1800 RPM.

6. Adjust the idle needle valve (C) slowly in (lean) and out

(rich) until engine idles smoothly.

7. Reset engine idle speed.

8. Check operation. Engine should increase speed

without hesitation when throttle control is moved

quickly from slow to fast. If the engine tends to die out,

adjust the high speed needle valve 1/8 turn anti-

clockwise until engine accelerates smoothly.

Never tamper with the engine governor setting.

Changing the engine governor speed will void engine

warranty.

LUBRICATION GENERAL

Using General Purpose Grease – (Every 25 hours)

- Grease nipples on front wheel pivots. See Fig.11

- Front Axle beam guides

- Grease nipples on steering pivot blocks Fig.21

- Steering gears Fig.21

- Grease nipple on engagement lever pivot Fig.23

Using Clean Engine Oil –

- Jockey pivot arms

- Throttle control cable Fig.9

- Chain Fig.23

7

MAINTENANCE

- Cutter Drive Lever Pivot;

- Clutch/brake pedal pivot; See Fig.15

- Tie rod ball ends; Fig.11

- All connecting rod pivot points.

NOTE: All ball bearings are sealed and require no

maintenance.

CUTTING UNIT:

Remove spark plug lead and disengage cutter drive before

working on cutter unit, to prevent accidental starting of the

engine.

Before using machine always inspect cutting unit to see that

the cutting disc, blades and blade fixings are not worn or

damaged.

Always check after striking a solid object. Do not operate

machine when unusual vibration occurs.

Replace worn or damaged blades in sets to preserve balance.

Remove any build-up of grass or clogging within the cutting

unit or discharge chute or safety flap.

CUTTING UNIT REMOVAL

1. Disconnect Push Rods & Brake Rod Fig.12

2. Remove tensioning spring. A loop has been provided on

the spring to assist in this operation; See Fig.12

3. Slide cutterdeck towards back of machine and remove

belt from around cutterdeck pulley.

4. Undo large retaining washer bolts (A) Fig.12. This will

allow front of deck to be lowered to ground.

5. Slide cutterdeck forward. This will allow the rear of the

deck to be lowered to the ground and be slid from under

the machine.

6. Replace in reverse order.

NOTE: To remove cutterdeck belt from machine, the belt

guard Item 52, Page 20, has to be moved away from

the drive pulley to allow the belt to be removed from

the V-groove and the cutterhead lifting rod Item 15,

Page 16, is to be disengaged from the cutterhead

selection arm assembly Item 5, Page 16 to allow belt

to be drawn out.

WHEEL REMOVAL

CAUTION: Always deflate tyre before removing rim nuts on

front wheel only.

Front –

1. Chock wheels and remove axle nut; See Fig.13

2. Raise front of machine;

3. Slide wheel from shaft;

4. Replace in reverse order;

5. Retighten axle nut firmly.

Rear –

1. Chock front wheels and raise rear of machine;

2. Remove four wheel nuts;

3. Slide wheel from hub; Fig.14

4. Refit wheel to hub

5. Replace wheel nuts and tighten.

BRAKE CALIPER ADJUSTMENT C

B A

1. Loosen locknut ‘A’ Fig.15

2. Loosen Bolt ‘B’ till brake caliper ‘C’ touches brake

Disc.

3. Retighten Locknut ’A’

BRAKE ARM ADJUSTMENT

1. Check that brake caliper is correctly adjusted;

2. Adjust locknut ‘E’ Fig.15. Till brake arm ‘D’ pad

comes into contact with disc;

3. Check operation of brake to ensure park brake can

be applied, and brake operates correctly.

8

MAINTENANCE

PARKING BRAKE

Should always be checked for operation after clutch/brake

rods have been adjusted.

CUTTER DRIVE ADJUSTMENT

1. Move Cutter Height Selector Lever to No.4 Position in

Rack

2. Move Cutter Drive Lever to the Engaged Position

3. Adjust Push Rods Fig.16 to give a spring compression

of 30mm, Fig.17.

4. Adjust Locknut ‘A’ to give 7mm clearance to back of

swivel block Fig.17

5. Disengage the Cutter Drive Selector Lever

6. Adjust locknut ‘A’ in Fig.20 to give Cutter Engagement

Lever a free travel of 30mm from bottom of slot in

Fig.18.

NOTE IMPORTANT

Check to ensure Lever has 30mm of free travel by working

lever.

CUTTER HEAD BRAKE

Should regularly be checked for operation.

PAD REPLACEMENT

1. Remove ‘R’ clip and

push rod pin (See

Fig.19)

2. Remove brake pivot

bolt (B) and two

spacers (See Fig.19)

3. Remove brake plate

assembly

4. Drill out pad retaining

rivets

5. Rivet replacement

pad in position

6. Refit in reverse order.

B

CUTTERHEAD BRAKE ADJUSTMENT

1. With cutter head disengaged and in low cut

position

2. Adjust nyloc nut on rod as per step 6 for Cutter

Driver Adjustment

3. Adjust tension on spring using lock nuts to give

length of 58mm, Fig.20

STEERING GEARS

GREASE

To adjust out excessive play caused by wear in the

gears.

1. Loosen bolts securing steering shaft pivot block (A).

2. Lightly tap pivot block towards layshaft pivot block

and retighten bolts (A).

3. Check steering gear engagement. Check that

there are no tight spots when turning steering

wheel from lock to lock.

9

MAINTENANCE

AUTO DRIVE

The Auto-Drive friction plates and drive pulleys are factory set

for travel required along key shaft and this should not need

adjusting.

If during operation it is found that the relationship between

forward and reverse has become unbalanced adjust as

follows:-

1. Loosen locknut (A) Fig.22

2. Centralise engagement lever (D) with friction plates

between drive pulleys, Fig.23

3. Re-tighen locknuts (A), Fig.22

CONTINUOUS BELT

This can be adjusted as follows:-

1. Loosen locknut (A) Fig.23

2. Loosen pivot bolt (B) Fig.23

3. Adjust belt tension using bolt (C) Fig.23

4. Re-tighten locknut (A) and pivot bolt (B)

NOTE: Belt to have 5mm deflection with finger pressure

between return pulley and drive pulley.

DRIVE CHAIN ADJUSTMENTS

Primary

1. Loosen off bolt ‘A’ Fig.24

2. Slide idler back till chain tightens

3. Re-tighten bolt ‘A’ and check chain for tight spots

Secondary

1. Loosen off bolt ‘B’ Fig.24

2. Slide sprocket back till chain tightens

3. Re-tighten bolt ‘B’ and check chain for tight spots

CAUTION: Do not over-tension belts or drive chains.

DRIVE SELECTOR PEDAL

The pedal angle can be tilted either forward on back to suit

individual requirements if necessary.

1. Loosen locknuts (A) on control rod Fig.25

2. Tilt control pedal to required angle to give maximum

operator comfort.

3. Retighten locknuts

Fig. 22

Fig. 23 D

Fig. 24

Fig. 25 A

10

MAINTENANCE

STEERING RODS

Should not normally require resetting.

1. Loosen rod lock nut; (A) See Fig.11

2. Release the fixing bolt;

3. Turn tie rod end to adjust for length clockwise to

shorten, anti-clockwise to lengthen

4. Replace the fixing bolt and tighten;

5. Tighten rod lock nut;

6. Make sure rod is free to pivot.

CUTTER HEAD TILT

This will not normally require resetting.

1. Loosen U-Bracket nuts; (B) See Fig.12.

2. Adjust nuts up or down to set tilt;

3. Model 160 (760mm cut) does require back of blade

circle tilted 15mm above front of blade circle in low cut

position;

4. Retighten all nuts.

STEERING STOPS

These will not normally require resetting.

1 Check if steering segment gear rotates in both

directions.

2 Loosen locknut on front beam and adjust bolt till

number of turns in both directions is equal.

3 Retighten locknut.

HEIGHT OF CUT ADJUSTMENT

To adjust the height of

cut rotate the nyloc nut

(A) situated under the

centre of machine on

the rear cutter support

assembly.

Adjust nyloc nut to

obtain low cut at front of

blade circle of 15mm.

SAFETY INTERLOCK SYSTEM

The safety interlock system has been designed for your

protection and should not be tampered with. It gives the

Ranger the following characteristics.

The engine will not start unless the clutch/brake pedal is

depressed and the cutter drive is disengaged.

NOTE: The engine should stop if the operator leaves the

seat without engaging park brake and/or the

cutter drive engaged.

WARNING: If the interlock system fails, see an authorised

dealer. Do no operate until the fault is corrected.

CAUTION: Safety switch circuit may become defective if

wet. Do not spray switches and connections.

STORAGE

Never store engine with fuel in tank indoors or in poor

ventilated enclosures where fuel fumes may

accumulate.

If machine is to be stored over 30 days proceed as

follows:-

1. Remove all fuel from carburetor and fuel tank

to prevent varnish-like gum deposits.

2. Remove spark plug and pour 30ml of engine oil

into cylinder. Crank engine several times to

distribute oil. Replace spark plug.

3. Clean engine and cooling fins, etc., of any

clippings, dirt and chaff.

4. Clean underside of mower and cutting unit.

Paint any chips or scratches.

5. Lubricate chassis components.

6. Remove and charge battery and store in a cool

dry spot. Recharge every 30 days.

7. Store machine in a clean dry place.

REMOVAL FROM STORAGE

1. Change oil.

2. Fill fuel tank with fuel.

3. Check spark plug.

4. Check drive belts.

5. Check drive chain.

6. Lubricate drive chain.

7. Lubricate pivot points.

8. Grease front axle spindles.

9. Check tyre pressure.

10. Check safety interlock.

11. Check cutting blades.

11

SAFETY AND INSTRUCTION DECALS

Safety and Instruction decals are mounted on the RANGER Rear Engine Rider.

Replace any that become damaged or illegible.

12

CIRCUIT DIAGRAM AND SPARES

ITEM DESCRIPTION PART No.

1 KEY SWITCH A07678

2 KEY A07679

3 BLADE SWITCH A06406

4 BRAKE SWTICH A06406

5 SOLENOID A07107

6 BATTERY A05262

7 FUSE A07513

8 POWER LEAD A12277

9 EARTH LEAD A12278

10 EARTH STRAP A12020

11 WIRING LOOM A10274

12 SEAT SWITCH A10257

13 SEAT PANEL SW. A06406

14 RESISTANCE LEAD A12283

13

TROUBLE SHOOTING

PROBLEM POSSIBLE CAUSES CORRECTIVE ACTION

Engine loses power 1. Oil level in crankcase in low 1. Add oil to crankcase

2. Cooling fins and air passages under engine

blower housing are blocked

2. Remove obstruction from passages

3. Engine load is excessive 3. Select a lower speed to reduce load

4. Air cleaner is dirty 4. Clean air cleaner element

5. Dirt or water is in fuel system 5. Have machine serviced by Authorised

Service Dealer

6. Carburetor is adjusted incorrectly 6. Adjust the carburetor

7. Spark plug is pitted, fouled or defective in

some other way

7. Install new correctly gapped spark plug

Engine over heats 1. Cooling fins and air passages under engine

blower housing are blocked

1. Remove obstruction from cooling fins air

passages

2. Carburetor is adjusted incorrectly 2. Adjust the carburetor

3. Oil level in crankcase is low 3. Add oil to crankcase

4. Engine load is excessive 4. Select a lower speed to reduce load

Mower vibrates abnormally 1. Engine mounting bolts are loose 1. Tighten mounting bolts

2. Loose cutter pulley, idler pulley or drive

pulley

2. Tighten the appropriate pulley

3. Cutter assembly is unbalanced 3. Replace broken blades in sets

4. Cutter assembly is loose 4. Tighten securing nut

Cutter does not rotate 1. Cutter drive belt is worn, loose or broken 1. Install new cutter drive belt

2. Cutter drive belt is off pulley 2. Install drive belt

Mower does not drive 1. Drive belt is worn, loose or broken 1. Install new drive belt

2. Drive belt is off pulley 2. Install drive belt

3. Unable to select speed on transaxle 3. Have machine serviced by Authorised

Service Dealer

Engine does not start, hard 1. Fuel tank is empty 1. Fill fuel tank with petrol

to start, loses power, or fails

2. Speed selected 2. Select Neutral

to keep running 3. Cutter Drive is engaged 3. Disengage Cutter Drive

4. Spark plug is loose 4. Tighten spark plug

5. Spark plug lead is loose or disconnected

from spark plug

5. Install spark plug lead on spark plug

6. Spark plug gap is incorrect 6. Set gap between electrodes at 0.8mm

7. Spark plug is pitted, fouled, or defective in

some other way

7. Install new correctly gapped spark plug

8. Wrong spark plug is used 8. Install correct spark plug

9. Electrical connections are loose 9. Check electrical system to ensure good

contact

10. Carburetor is adjusted incorrectly 10. Adjust the carburetor

11. Air cleaner is dirty 11. Clean the air cleaner element

12. Vent hole in fuel tank is plugged 12. Inspect and open vent

13. Dirt or water in fuel system

14. Dead battery

15. Defective points, condenser, ignition coil,

or ignition switch

13. Have machine serviced by Authorised

Service Dealer

16. Module or switch is defective

Engine does not idle or idles

1. Air cleaner is dirty 1. Clean air cleaner element

Poorly 2. Oil level in crankcase is low 2. Add oil to crankcase

3. Cooling fins and air passages under engine

blower housing are plugged

3. Remove obstruction from cooling fins

and air passages

4. Idle speed is too low or high speed mixture

is incorrect

4. Adjust the carburetor

5. Dirt or water is in fuel system 5. Have machine serviced by Authorised

Service Dealer

6. Vent hole in fuel tank is plugged 6. Clean fuel tank vent

7. Spark plug is pitted, fouled or defective in

some other way

7. Install new correctly gapped spark plug

14

RANGER AUTO – DRIVE SPARE PARTS LIST

ITEM PART No. DESCRIPTION

* COMMON HARDWARE ITEM

1 A07937 Fuel Tank

2 A12005 Fuel Tank Cap

3 A07999 Fuel Tank Bracket

4 A12001 Fuel Tank Strap – Front

5 A12002 Fuel Tank Strap – Rear

6 A12009 Fuel Line – ¼ ID

7 A12010 Hose Clamp

8 A12011 Fuel Line Retainer ½” Copper Half Clip

9 * ¼” x ⅝” UNC Hex Bolt

10 * ¼” UNC Std. Nyloc Nut

11 * 73 AS 5-5 Blind Rivet

12 A03422 Filter – Cent Cap

13 A03421 Vent Cap

14

15 * 5/16” Shakeproof Washer

16 A12019 Fuel Tank Caution Label

15

16

RANGER AUTO – DRIVE SPARE PARTS LIST

ITEM PART No. DESCRIPTION

* COMMON HARDWARE ITEM

1 A10260 Chassis Assembly

2 A10041 Height Selector Shaft Assembly

3 A10280 Cutterhead Engage. Selector Assembly

4 A10248 Drive Selector Pedal Assembly

5 A00980 Cutterhead Selector Arm Assembly

6 A10250 Pedal Arm Assembly

7 A10243 Pedal Assembly

8 A10276 Front Bumper Bar Assembly

9 A10265 Engagement Shaft Assembly

10 A10273 Push Rod Assembly

11 A10277 Engagement Rod Assembly

12 A10057 Cutterhead Engage. Arm Assembly

13 A06318 Selector Lever

14 A07652 Lever Knob

15 A06316 Cutterhead Lifting Rod

16 A07616 Park Brake Rod

17 A07617 Knob

18 A07615 Pedal Rubber

19 A01275 Nylon Bush

20 A07657 End Cap

21 A07971 End Cap

22 A12047 Spacer

23 A12284 Decal – Floor Panel

24 A05417 Decal – Forward-Reverse

25 A07649 Rubber Washer

26 A12234 Swivel Block

27 A12263 Spring Guide

28 A12264 Spring

29 A04006 Pin

30 A01080 Spring Clip

31 A07755 Swivel Block

32 A10178 Rear Support Assembly

33 A07745 Spring

34 A07736 Front Arm

35 A07750 Retaining Washer

36 A07751 Spacer

37 A07897 Sleeve

38 * Poprivet – 73AS 5-5

39 * Rollpin – ⅛“ x ⅞”

40 * Rollpin ¼” x 1⅛”

41 * Split Pin – ⅛” x ¼”

42 * Setscrew – 5/16” x 2” UNC. Hex

43 * Bolt – 5/16” x ⅝” UNC. Washer Face

44 * Setscrew – ⅜” x 1¼” UNF. Hex

45 * Setscrew – ⅜” x 1” UNC. Hex

46 * Bolt – ⅜” x ½” UNC. Hex

47 * Setscrew – ⅜” x 2” UNC. Hex

48 * Bolt – ⅜” x 1¾” UNF. HT. Hex

49 * Nut – 5/16” UNC. Hex

50 * Nut – ⅜” UNC. Hex

51 * Nut – ⅜” UNF. Hex

52 * Nyloc Nut – 5/16” UNC.

53 * Nyloc Nut – ⅜” UNC. Thin

54 * Nyloc Nut – ⅜” UNF. Thin

55 * Nyloc Nut – M12 x 1.75P

56 * Washer – 5/16” x ⅞” x 16G Flat

57 * Washer – 5/16” Internal Shakeproof

58 * Washer – ⅜” x ¾” x 16G Flat

59 * Washer – ⅜” Internal Shakeproof

60 * Washer – 12

61 * Washer ⅝” x 1” x 16G Flat

62 A12102 Drive Selector Pedal Rubber

63 * Setscrew – 5/16” x 1½” UNF. H.T.

64 * Nyloc Nut – 5/16” UNF.

65 A04034 Cotter Pin

66 * Roll Pin – 5/32” x 1¼”

17

18

Page is loading ...

Rover 5377 - 12HP User manual

This manual is also suitable for

Rover 5377 - 12HP User manual

Related papers

Other documents